Revert "Update .gitignore to exclude app/build/ except res"

This reverts commit fccae746f0.

app/build/outputs/apk/androidTest/debug/output-metadata.json

@@ -0,0 +1,21 @@
+{
+  "version": 3,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "com.hikoncont.test",
+  "variantName": "debugAndroidTest",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "attributes": [],
+      "versionCode": 0,
+      "versionName": "",
+      "outputFile": "app-debug-androidTest.apk"
+    }
+  ],
+  "elementType": "File",
+  "minSdkVersionForDexing": 24
+}

app/build/outputs/apk/debug/output-metadata.json

@@ -0,0 +1,21 @@
+{
+  "version": 3,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "com.hikoncont",
+  "variantName": "debug",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "attributes": [],
+      "versionCode": 1,
+      "versionName": "1.0.0",
+      "outputFile": "app-debug.apk"
+    }
+  ],
+  "elementType": "File",
+  "minSdkVersionForDexing": 24
+}